Network voice device and method thereof for preventing producing noises

一种网络语音、噪声的技术，应用在互连装置、电话通信、电气元件等方向，能够解决容值增加、降低VoIP通话质量、通话噪声等问题，达到防止噪声、提升网络语音通话质量的效果

Inactive Publication Date: 2010-10-06
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, when the phone is on-hook, the time-division multiplexing bus will transmit continuous high levels to the SLIC. At this time, because the multiple transmission paths are tied together, the capacitance will increase so that the voltage cannot be changed in time, making the time-division The multiplexing bus is locked at a high level, thereby interfering with the packet transmission required by other telephones in the off-hook state, causing noise in the call and greatly reducing the quality of VoIP calls

Method used

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  • Network voice device and method thereof for preventing producing noises
  • Network voice device and method thereof for preventing producing noises
  • Network voice device and method thereof for preventing producing noises

Examples

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Embodiment Construction

[0011] refer to figure 1 , which shows an implementation environment and functional module diagram of an embodiment of the VoIP device 10 of the present invention. In this embodiment, the VoIP device 10 is connected between a Voice over Internet Protocol (VoIP) network 30 and a plurality of telephone sets 20 for handling VoIP calls of the plurality of telephone sets 20 . VoIP device 10 converts the data packets from VoIP network 30 into voice signals and inputs them to telephone set 20, and simultaneously converts the voice signals from telephone set 20 into data packets and inputs them to VoIP network 30, and transmits them to the other end of the VoIP call. Make a call. VoIP device 10 is a VoIP access device, such as a VoIP gateway, telephone 20 is a user terminal device with VoIP call function, such as a VoIP phone, and VoIP network 30 is a network for transmitting data signals, such as the Internet.

[0012] The VoIP device 10 includes a time-division multiplexing bus 12...

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Abstract

The invention relates to a network voice device which comprises a time division multiplex bus, a plurality of digital signal processors and a plurality of subscriber line interface circuits. In the network voice device, the time division multiplex bus is divided into multiple time slots including multiple call time slots and at least one special time slot, each subscriber line interface circuit is allocated with one call time slot for call, one special digital signal processor is selected from the digital signal processors and is controlled to generate high and low interval electrical signalsto the special time slot, and the multiple subscriber line interface circuits are controlled to receive the high and low interval electrical signals from the special digital signal processor through the special time slot. The invention also provides a method for preventing the network voice device from producing noises. The network voice device and the method thereof for preventing producing the noises can effectively prevent noises generated by locking the time division multiplex bus at high level, thereby improving the network voice call quality.

Description

technical field [0001] The invention relates to Internet voice, in particular to an Internet voice device and a method for preventing it from generating noise. Background technique [0002] Voice over Internet Protocol (VoIP) service is an emerging call service. It uses an open network to transmit audio and video, and uses packetized voice to provide call services, just like using the network to transmit information. VoIP service is widely used because of its low call cost, and VoIP gateway is used to provide such VoIP service. A common VoIP gateway connects multiple telephone sets, including multiple digital signal processors (Digital Signal Processor, DSP) and multiple subscriber line interface processing circuits (Subscriber Line Interface Circuit, SLIC), which are used to process calls of multiple telephone sets . [0003] At present, VoIP gateways generally use time-division multiplexing technology to process calls. Time-division multiplexing technology refers to cutt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M7/00
CPCH04M7/125
Inventor 赖勤宁
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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